Environmentally Sustainable Magnetic Solid Sulfonic Acid: An Efficient and Reusable Catalyst for the Pechmann Reaction

被引：19

作者：

Mobaraki, Akbar ^{[1
]}

Yasham, Shahriar ^{[1
]}

Movassagh, Barahman ^{[1
]}

机构：

[1] KN Toosi Univ Technol, Dept Chem, Tehran, Iran

来源：

SYNLETT | 2015年 / 26卷 / 09期

基金：

美国国家科学基金会;

关键词：

Pechmann condensation; coumarin; magnetic particles; nanocomposites; sulfonic acid; 7-HYDROXY-4-METHYL COUMARIN; IONIC LIQUIDS; CONDENSATION; OPTIMIZATION; ANALOGS; SURFACE; CELLS;

D O I：

10.1055/s-0034-1380503

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An environmentally benign sulfonic acid nanocomposite based on Fe3O4@SiO2 core-shell magnetic nanoparticles, Fe3O4@SiO2@Et-PhSO3H, was prepared and the acidity and utility of the catalyst were explored for the synthesis of a diverse range of coumarin derivatives under solvent-free conditions. The catalyst shows potential for scale up in the synthesis of coumarins with high purity and was easily separated by using an external magnet. The recovered catalyst was reused in seven cycles without any significant loss of activity.

引用

页码：1263 / 1268

页数：6

共 63 条

[1] Nanostructure sulfated tin oxide as an efficient catalyst for the preparation of 7-hydroxy-4-methyl coumarin by Pechmann condensation reaction [J].